Understanding the Equation
To solve the equation \( \frac{X}{3} = 9 \) using the trial and error method, we start by understanding the equation. We need to find a value of \( X \) such that when it is divided by 3, the result equals 9.

Setting Up the Trial
- Start with a guess for \( X \).
- Since the division is involved, multiply 9 by 3 to estimate a reasonable starting point.
- \( 9 \times 3 = 27 \).

Testing the Values
- **Trial 1:**
- Let’s try \( X = 27 \).
- Calculation: \( \frac{27}{3} = 9 \).
- Result: This is correct!
- **Additional Trials (for Practice):**
- **Trial 2:**
- Let’s try \( X = 24 \).
- Calculation: \( \frac{24}{3} = 8 \).
- Result: Too low.
- **Trial 3:**
- Let’s try \( X = 30 \).
- Calculation: \( \frac{30}{3} = 10 \).
- Result: Too high.

Conclusion
Through the trial and error method, we found that \( X = 27 \) satisfies the equation \( \frac{X}{3} = 9 \). This method involves making educated guesses, performing calculations, and adjusting based on the results until the correct value is identified.